Problems
Arena
Season 2020 — Diamond III
Condition Reached Diamond III in Season 202053
Standard Library
Celebrated the 1st anniversary of solved.ac
Condition Solved previously unsolved problem at between May 31st, 2021 00:00 and June 8th, 2021 00:00 (KST)5K
30 Days of Sincerity
Condition Achieve max streak of 30 days13K
100 Days of Consistency
Condition Achieve max streak of 100 days4.6K
TRICK|TREAT 2021
Solved a problem in Halloween 2021
Condition Solved previously unsolved problem at between October 31st, 2021 06:00 and November 1st, 2021 06:00 (KST)2.6K
Stars in the Evening Sky
She who has a star in her heart never gets lost in the dark
Condition Bought the background at the coin shop2.8K
Merry Christmas 2021
Solved a problem in Christmas or Christmas Eve 2021
Condition Solve 1 or more previously unsolved problems between 6:00 AM on December 24, 2021 and 6:00 AM on December 26, 20213.5K
God's Queries on This Wonderful Arrays!
Seeing that the value written in the Nth sequence in front of your house changes every day, you became angry and decided to sue Hanbyeol.
Condition Solve 1 or more problems which has '수열' or '쿼리' in its Korean version of the title, at some point after March 22, 20226.8K
Magician of the Library
Celebrated the 2nd anniversary of solved.ac
Condition Solve 1 or more previously unsolved problems between 6:00 AM on May 30, 2022 and 6:00 AM on June 6, 20229.7K
Season 2021 — Ruby V
Condition Reached Ruby V in Season 202148
Inha University Programming Contest 2022
Condition Solved 1 or more problems in Inha University Programming Contest 2022, or in its open contest293
UCPC 2022
Condition Participated in UCPC 2022, or in its open contest996
Midsummer Memories
Condition Achieve a score of over 1,800 in the Postcard Decoration Event 20221.4K
시즌 2 루비 4
Condition 시즌 2에 루비 4 달성23
귀를 기울이며
solved.ac의 4주년과 함께했다
Condition 2024년 5월 30일과 2024년 6월 6일 오전 6시 사이에, 이전에 풀지 않았던 문제 중 아무 문제나 한 문제 이상 해결12K
시즌 3 루비 3
Condition 시즌 3에 루비 3 달성23